ISO27001:2013 Certified Supplier

How Seriously Do We Take Information Security?

We’re an IT company: you’d expect us to say that we take information security seriously – and we do.

But We Would Say That, Wouldn’t We?

We don’t think you should have to take our word for it, so back in 2014 we embarked upon the journey to certification under ISO27001:2013, the Information Security standard. We examined, refined, documented and tested every aspect of Information Security, both within Tiger Computing and extending to how we manage and support our clients’ systems. In May 2015, we put ourselves to the test. We were independently audited and were assessed and certified as meeting the requirements of ISO27001:2013.

What Does This Mean For You?

It means that you can rest assured that we take Information Security seriously; that we will continue to refine and improve our Information Security policies; and that we will be independently audited annually to confirm that we are maintaining the required high standards of ISO27001:2013.

What’s Next?

We will continue to grow our support, management and monitoring infrastructure to ensure that our clients have the very best availability of your systems – and we’ll continue building our team of the best Linux experts in the UK.

The History

When talking about data sizes, the common prefixes are kilo (1,000), mega (1,000,000), giga (1,000,000,000) and tera (1,000,0000,000,000).

Powers of 2

Computers like to think in powers of 2 rather than the powers of 10 preferred by humans. That means that, for example, a KB (kilobyte) is generally understood to be 1024 bytes rather than 1000, which is difference of around 2%.

If you have a file that is, say, 500MB in size, that’s actually 500 x 1024 x 1024, or 524,288,000. Compared with 500,000,000, that’s a difference of nearly 5%.

The Problem

Disk vendors like to use powers of 10 to describe their disk sizes because that makes them sound bigger. Your 500MB file will not fit onto a 500MB disk.

To try to make it clear whether the prefixes are referring to powers of 10 or powers of 2, a new naming concept was born whereby the third letter of the prefix becomes a ‘b’ and the ‘a’ in the fourth position becomes an ‘i’. So, a gigabyte (1,000,000,000 bytes) should, when referring to data and using powers of 2, be referred to as a gibibyte (1,073,741,824 bytes). Here’s a quick comparison:

one mebibyte (1 MiB) = 220 bytes = 1,048,576 bytes

one megabyte (1MB) = 106 bytes = 1,000,000 bytes

one gibibyte (1 GiB) = 230 bytes = 1,073,741,824 bytes

one gigabyte (1 GB) = 109 bytes = 1,000,000,000 bytes

one tebibyte (1 TiB) = 240 bytes = 1,099,511,627,776 bytes

one terabyte (1 TB) = 1012 bytes = 1,000,000,000,000 bytes

What does this mean to you?

When you buy a 4TB disk, you will get 4TB (4,000,000,000,000 bytes) of storage rather than 4TiB (4,398,046,511,104 bytes). The disk will be smaller than you expect.

A disk advertised as 4TB will store about 3.64TiB.

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